Definition of monkey-face in US English:

monkey-face

noun

  • 1A face like that of a monkey; an amusing or funny face.

  • 2Caribbean informal. A grimace, especially one intended to frighten, or made by a child as a sign of disrespect or annoyance.

  • 3US. A freshwater mussel, Quadrula metanevra (family Unionidae), with a yellow to light brown shell, found in medium to large rivers in parts of the United States. Also (with distinguishing word): any other mussel of this genus.

  • 4United States regional. The barn owl, Tyto alba.

Origin

Late 16th century; earliest use found in Thomas Nashe (d. c1601), writer. From monkey + face.

Pronunciation

monkey-face

/ˈmʌŋkɪfeɪs/